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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 51 // We always generate arm code, never thumb code, even if V8 is compiled to | 51 // We always generate arm code, never thumb code, even if V8 is compiled to |
| 52 // thumb, so we require inter-working support | 52 // thumb, so we require inter-working support |
| 53 #if defined(__thumb__) && !defined(__THUMB_INTERWORK__) | 53 #if defined(__thumb__) && !defined(__THUMB_INTERWORK__) |
| 54 #error "flag -mthumb-interwork missing" | 54 #error "flag -mthumb-interwork missing" |
| 55 #endif | 55 #endif |
| 56 | 56 |
| 57 | 57 |
| 58 // We do not support thumb inter-working with an arm architecture not supporting | 58 // We do not support thumb inter-working with an arm architecture not supporting |
| 59 // the blx instruction (below v5t) | 59 // the blx instruction (below v5t) |
| 60 #if defined(__THUMB_INTERWORK__) | 60 #if defined(__THUMB_INTERWORK__) |
| 61 #if !defined(__ARM_ARCH_5T__) && !defined(__ARM_ARCH_5TE__) | 61 #if !defined(__ARM_ARCH_5T__) && \ |
| 62 !defined(__ARM_ARCH_5TE__) && \ |
| 63 !defined(__ARM_ARCH_7A__) && \ |
| 64 !defined(__ARM_ARCH_7__) |
| 62 // add tests for other versions above v5t as required | 65 // add tests for other versions above v5t as required |
| 63 #error "for thumb inter-working we require architecture v5t or above" | 66 #error "for thumb inter-working we require architecture v5t or above" |
| 64 #endif | 67 #endif |
| 65 #endif | 68 #endif |
| 66 | 69 |
| 67 | 70 |
| 68 // Using blx may yield better code, so use it when required or when available | 71 // Using blx may yield better code, so use it when required or when available |
| 69 #if defined(__THUMB_INTERWORK__) || defined(__ARM_ARCH_5__) | 72 #if defined(__THUMB_INTERWORK__) || defined(__ARM_ARCH_5__) |
| 70 #define USE_BLX 1 | 73 #define USE_BLX 1 |
| 71 #endif | 74 #endif |
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| 946 #endif | 949 #endif |
| 947 mov(r0, Operand(p0)); | 950 mov(r0, Operand(p0)); |
| 948 push(r0); | 951 push(r0); |
| 949 mov(r0, Operand(Smi::FromInt(p1 - p0))); | 952 mov(r0, Operand(Smi::FromInt(p1 - p0))); |
| 950 push(r0); | 953 push(r0); |
| 951 CallRuntime(Runtime::kAbort, 2); | 954 CallRuntime(Runtime::kAbort, 2); |
| 952 // will not return here | 955 // will not return here |
| 953 } | 956 } |
| 954 | 957 |
| 955 } } // namespace v8::internal | 958 } } // namespace v8::internal |
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